body{
    background: url("../imgs/bg.jpg");
    /*设置背景封面,大小不会改变*/
    background-size: cover;
    text-align: center;
}
h2{
    font-size: 32px;
    color: #0096dc;
    margin-bottom: 0;
    font-family: "楷体";
}
.el-card {
    width: 500px;
    height: 400px;
    margin:auto;
    background-color: rgba(255, 255, 255, 0.3);
    margin-top: 100px ;
}
.el-form{
    width: 400px;
    margin: 50px auto;
}